Pentium 4 Fan

A boxed Pentium 4 processor includes a high quality unattached fan heatsink specifically designed to provide sufficient cooling to the Pentium 4 processor when used in a suitable chassis environment.

The fan heatsink and clip assembly (A) comprises:

B: Clip frame

C: Clip levers

D: Clip frame corners

E: Clip frame latch

F: Retention mechanism hook.

and attaches to the motherboard-mounted retention mechanism (G).

Normally, there will be thermal interface material attached to the bottom of the processor’s fan heatsink. Take care not to damage this. Alternatively, use the enclosed syringe to apply all of the thermal interface material provided to the IHS surface of the processor.

Align the heatsink and clip assembly with the retention mechanism (the fan heatsink is symmetrical) and place it on the processor. Allow the heatsink base to compress (without rotating or twisting) the thermal interface material over the surface of the processor’s integrated heat spreader.

With the clip levers in the upward position, push down on all four clip frame corners to secure the clip frame latches to the retention mechanism hooks, making sure the processor fan cable is free from any obstruction and is not trapped under clip frame.

It is important to not allow the heatsink to rotate or twist on the processor’s integrated heat spreader. Securing the fan heatsink while closing the clip levers will ensure the thermal interface material is not damaged and the processor will operate correctly.

Close the clips levers in opposing directions, one at a time. The levers require some force to be completely closed.

First, close clip lever 1 while holding the topside of the fan heatsink with your hand.

Then, close clip lever 2 while holding the topside of the fan heatsink with your other hand.

Once the clip levers are closed, verify that the heatsink is securely retained and that the clip frame latches are properly engaged with the retention mechanism hooks.

Finally, connect the processor fan cable to the motherboard fan power header. Consult the motherboard manual to determine the correct fan header to use.

When installed, the fan heatsink and clip assembly may cause the motherboard to slightly bend or flex. This is nothing to be concerned about, and provides the proper mechanical support for the processor (with attached fan heatsink and clip assembly) and helps prevent against damage during system shipment.

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